Autocad 2010 Portable -

He reopened the lid. The software was gone. The desktop was clean. The CD jewel case on his desk now held a different disc: a blank, silver mirror. In it, he saw not his face, but a cross-section of a building he didn't recognize—a narrow hallway, a basement stair, a small room at the end with a single door marked LAYER 0 – ORIGIN POINT .

"Do you wish to see the blueprints of the house you will die in?" Autocad 2010 Portable

Creepy, but efficient. He started drawing. He reopened the lid